Contacts of the helix formed by residues 21 - 52 (chain B) in PDB entry 3D0G


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with THR 21 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20B  THR*     1.3    86.2    +      -       -      +
     22B  GLU*     1.3    65.6    +      -       -      +
     23B  GLU      2.9     1.1    -      -       -      +
     24B  LEU*     3.0     8.8    +      -       +      +
     25B  ALA*     3.0    24.1    +      -       +      +
     83B  TYR*     4.9     8.3    -      -       +      -
     84B  PRO*     4.4    24.2    -      -       +      +
     87B  GLU*     2.9    35.7    +      -       -      +
     88B  ILE*     5.0     7.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 22 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20B  THR*     3.9     3.5    +      -       -      +
     21B  THR*     1.3    78.5    -      -       -      +
     23B  GLU*     1.3    62.3    +      -       -      +
     25B  ALA*     3.6     7.6    +      -       -      +
     26B  LYS*     3.1    47.7    +      -       -      +
     88B  ILE*     3.2    18.8    -      -       +      +
     89B  GLN*     2.9    52.8    +      -       -      +
     90B  ASN*     3.0    27.8    +      -       -      +
     93B  VAL*     4.4     3.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 23 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19B  SER*     4.2    20.3    +      -       -      +
     20B  THR*     3.3    30.3    +      -       -      +
     21B  THR      2.9     0.4    -      -       -      +
     22B  GLU*     1.3    76.6    -      -       -      +
     24B  LEU*     1.3    63.0    +      -       -      +
     25B  ALA      3.1     1.2    +      -       -      -
     26B  LYS*     3.1    31.2    +      -       -      +
     27B  THR*     3.7     8.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 24 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19B  SER*     4.5    22.9    -      -       -      +
     20B  THR      3.4    23.3    -      -       -      +
     21B  THR*     3.0     9.1    +      -       +      +
     23B  GLU*     1.3    78.6    -      -       +      +
     25B  ALA*     1.3    60.2    +      -       -      +
     27B  THR*     3.9     7.5    +      -       -      -
     28B  PHE*     3.5    20.3    +      -       -      +
     83B  TYR*     3.9    19.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 25 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21B  THR*     3.0    15.5    +      -       +      +
     22B  GLU*     3.6     9.6    -      -       +      +
     24B  LEU*     1.3    75.1    -      -       -      +
     26B  LYS*     1.3    65.9    +      -       -      +
     28B  PHE*     3.2     5.4    +      -       -      +
     29B  LEU*     3.0    35.6    +      -       +      +
     83B  TYR*     4.0    21.7    -      -       +      -
     88B  ILE*     4.5    16.8    -      -       +      -
     93B  VAL*     5.7     5.2    -      -       +      -
     97B  LEU*     4.8     5.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 26 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22B  GLU*     3.1    39.5    +      -       -      +
     23B  GLU*     3.1    19.5    +      -       -      +
     25B  ALA*     1.3    76.2    -      -       -      +
     27B  THR*     1.3    54.9    +      -       -      +
     29B  LEU*     2.9    11.4    +      -       -      +
     30B  GLU*     2.8    49.0    +      -       -      +
     90B  ASN*     4.1     8.7    -      -       -      -
     93B  VAL*     3.7    30.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 27 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23B  GLU      3.7    10.1    +      -       -      -
     24B  LEU*     4.0     9.2    -      -       -      -
     25B  ALA      3.4     0.2    -      -       -      -
     26B  LYS*     1.3    76.2    -      -       -      +
     28B  PHE*     1.3    57.0    +      -       -      +
     30B  GLU*     3.4    16.5    +      -       +      +
     31B  THR*     3.0    37.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 28 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24B  LEU      3.5     6.2    +      -       -      +
     25B  ALA      3.2     9.6    +      -       -      +
     26B  LYS      3.2     0.4    -      -       -      -
     27B  THR*     1.3    78.7    -      -       -      +
     29B  LEU*     1.3    63.2    +      -       +      +
     31B  THR*     3.2     8.3    +      -       +      -
     32B  PHE*     2.8    26.9    +      -       +      +
     76B  GLN*     3.3    29.6    -      -       -      -
     79B  LEU*     4.2    15.5    -      -       +      -
     80B  ALA*     3.9    27.6    -      -       +      -
     83B  TYR*     3.8    36.3    -      +       +      +
     97B  LEU*     4.4     9.9    -      -       +      -
    100B  LEU*     3.7    31.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 29 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25B  ALA*     3.0    29.9    +      -       +      +
     26B  LYS*     2.9     9.3    +      -       -      +
     28B  PHE*     1.3    77.7    -      -       +      +
     30B  GLU*     1.3    58.2    -      -       -      +
     32B  PHE*     3.0     5.3    +      -       +      +
     33B  ASN*     2.7    40.3    +      -       -      +
     93B  VAL*     4.3    21.5    -      -       +      +
     96B  GLN*     4.2    27.1    -      -       +      +
     97B  LEU*     3.8    23.6    -      -       +      +
    100B  LEU*     4.0    19.7    -      -       +      -
    391B  LEU*     3.9    26.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 30 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26B  LYS*     2.8    34.6    +      -       -      +
     27B  THR*     3.5    17.8    +      -       +      +
     29B  LEU*     1.3    70.7    -      -       -      +
     31B  THR*     1.3    62.9    +      -       -      +
     33B  ASN*     3.3    10.1    +      -       -      +
     34B  TYR*     3.1    44.5    +      -       +      -
----------------------------------------------------------
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Residues in contact with THR 31 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27B  THR*     3.0    19.1    +      -       -      +
     28B  PHE*     3.5    11.2    -      -       +      -
     29B  LEU      3.1     0.2    -      -       -      -
     30B  GLU*     1.3    72.7    -      -       -      +
     32B  PHE*     1.3    67.2    +      -       -      +
     34B  TYR*     3.3     7.1    +      -       -      +
     35B  GLU*     3.1    28.8    +      -       +      +
     76B  GLN*     6.2     2.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 32 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28B  PHE*     2.8    18.0    +      -       +      +
     29B  LEU*     3.3    10.8    -      -       +      +
     31B  THR*     1.3    74.1    -      -       -      +
     33B  ASN*     1.3    66.7    +      -       -      +
     35B  GLU*     3.6     1.5    -      -       -      +
     36B  ALA*     2.6    57.1    +      -       +      +
     72B  PHE*     3.9    20.1    -      +       -      -
     73B  LEU*     4.0    17.9    -      -       +      -
     76B  GLN*     3.7    31.6    +      -       +      +
    100B  LEU*     3.6    35.7    -      -       +      -
    390B  PHE*     4.1     5.4    -      +       -      -
    391B  LEU*     3.6    41.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 33 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29B  LEU*     2.7    20.1    +      -       -      +
     30B  GLU*     3.3    13.9    -      -       -      +
     32B  PHE*     1.3    90.7    -      -       -      +
     34B  TYR*     1.3    66.6    +      -       +      +
     36B  ALA*     3.2     3.2    +      -       -      +
     37B  GLN*     3.0    35.0    +      -       -      +
     96B  GLN*     3.6    24.6    +      -       -      +
    389B  PRO*     5.0     1.9    -      -       -      +
    390B  PHE*     3.5    29.5    +      -       +      +
    391B  LEU*     4.4     3.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 34 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30B  GLU*     3.1    43.0    +      -       +      +
     31B  THR*     4.1     5.2    -      -       -      +
     33B  ASN*     1.3    82.3    -      -       +      +
     35B  GLU*     1.3    62.2    +      -       -      +
     37B  GLN*     3.8    16.5    +      -       -      +
     38B  GLU*     3.4    25.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 35 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31B  THR*     3.1    22.6    +      -       +      +
     32B  PHE*     3.8     2.5    -      -       -      +
     34B  TYR*     1.3    75.2    -      -       -      +
     36B  ALA*     1.3    65.8    +      -       -      +
     38B  GLU*     3.3    14.2    +      -       -      +
     39B  LEU*     3.1    45.1    +      -       -      +
     72B  PHE*     3.8    19.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 36 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32B  PHE*     2.6    45.4    +      -       +      +
     33B  ASN      3.2     4.2    +      -       -      +
     35B  GLU*     1.3    71.5    -      -       -      +
     37B  GLN*     1.3    54.3    +      -       -      +
     39B  LEU      3.1     1.6    +      -       -      -
     40B  SER*     2.7    39.0    +      -       -      -
     69B  TRP*     3.3    29.0    -      -       +      -
     72B  PHE*     3.7     5.4    -      -       +      -
    390B  PHE*     3.9     9.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 37 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33B  ASN*     3.0    23.5    +      -       -      +
     34B  TYR*     3.9    17.9    -      -       -      +
     35B  GLU      3.2     0.2    -      -       -      -
     36B  ALA*     1.3    75.0    -      -       -      +
     38B  GLU*     1.3    59.0    +      -       -      +
     40B  SER*     3.7     0.9    -      -       -      -
     41B  TYR*     2.9    33.1    +      -       -      +
    353B  LYS*     3.0    32.2    +      -       +      +
    390B  PHE*     3.9    26.6    -      -       +      +
    393B  ARG*     3.2    27.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 38 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34B  TYR      3.4    17.2    +      -       -      +
     35B  GLU*     3.3    18.8    +      -       -      +
     37B  GLN*     1.3    76.5    -      -       -      +
     39B  LEU*     1.3    64.8    +      -       +      +
     41B  TYR*     4.0     3.8    -      -       -      +
     42B  GLN*     3.3    32.4    +      -       -      +
    353B  LYS*     3.1    34.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 39 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35B  GLU*     3.1    26.6    +      -       -      +
     36B  ALA      3.1     3.6    +      -       -      +
     38B  GLU*     1.3    78.8    -      -       +      +
     40B  SER*     1.3    57.4    +      -       -      +
     42B  GLN*     3.3    20.1    +      -       -      +
     43B  SER*     3.0    26.9    +      -       -      -
     65B  ALA      4.9     1.6    -      -       -      +
     68B  LYS*     3.7    35.4    -      -       +      +
     69B  TRP*     3.5    22.5    -      -       +      +
     72B  PHE*     3.4    41.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 40 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36B  ALA      2.7    21.0    +      -       -      -
     37B  GLN      3.9     2.2    -      -       -      -
     39B  LEU*     1.3    70.4    -      -       -      +
     41B  TYR*     1.3    62.9    +      -       -      +
     43B  SER*     3.5     6.5    +      -       -      -
     44B  SER*     2.8    31.0    +      -       -      -
     69B  TRP*     3.7    31.5    +      -       -      -
    351B  LEU      4.3     4.0    +      -       -      -
    390B  PHE*     3.9    19.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 41 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37B  GLN      2.9    17.2    +      -       -      +
     38B  GLU*     4.0     4.9    -      -       -      +
     40B  SER*     1.3    74.7    -      -       -      +
     42B  GLN*     1.3    64.1    +      -       +      +
     44B  SER*     2.9     2.9    +      -       -      -
     45B  VAL*     2.9    54.1    +      -       +      +
    351B  LEU*     3.4    22.8    +      -       +      +
    352B  GLY*     3.5    26.0    -      -       -      -
    353B  LYS*     4.0    27.1    -      -       +      -
    355B  ASP*     2.7    31.0    +      -       +      +
    357B  ARG*     4.5     1.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 42 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38B  GLU*     3.3    18.1    +      -       -      +
     39B  LEU*     3.5    26.8    -      -       -      +
     41B  TYR*     1.3    82.0    -      -       +      +
     43B  SER*     1.3    58.0    +      -       -      +
     45B  VAL*     4.4     4.6    -      -       -      +
     46B  ALA*     3.1    27.0    +      -       -      +
     65B  ALA*     3.5    13.3    -      -       +      +
     68B  LYS*     4.6     9.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 43 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39B  LEU      3.0    13.7    +      -       -      -
     40B  SER*     3.5    11.9    -      -       -      -
     41B  TYR      3.1     0.2    -      -       -      -
     42B  GLN*     1.3    76.6    -      -       -      +
     44B  SER*     1.3    54.1    +      -       -      +
     46B  ALA*     3.3     2.8    -      -       -      +
     47B  SER*     2.7    34.9    +      -       -      -
     62B  MET      5.0     2.3    -      -       -      +
     65B  ALA*     3.8    14.5    -      -       -      +
     66B  GLY*     3.9    13.2    -      -       -      +
     69B  TRP*     4.1    25.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 44 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40B  SER*     2.8    17.8    +      -       -      -
     41B  TYR      2.9     5.7    +      -       -      -
     43B  SER*     1.3    73.9    -      -       -      +
     45B  VAL*     1.3    59.2    +      -       -      +
     46B  ALA      3.0     1.1    -      -       -      -
     47B  SER*     2.9     7.8    +      -       -      -
     48B  TRP*     2.6    36.0    +      -       -      +
    349B  TRP*     3.8     7.7    -      -       -      -
    350B  ASP      5.0     0.9    +      -       -      -
    351B  LEU*     3.3    38.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 45 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41B  TYR*     2.9    61.8    +      -       +      +
     42B  GLN*     4.4     4.5    -      -       -      +
     44B  SER*     1.3    74.0    -      -       -      +
     46B  ALA*     1.3    65.4    +      -       -      +
     48B  TRP*     3.8     2.1    -      -       -      +
     49B  ASN*     3.2    34.0    +      -       -      +
    351B  LEU*     3.6    14.8    -      -       +      +
    357B  ARG*     4.9     8.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 46 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42B  GLN      3.1    22.3    +      -       -      +
     43B  SER      3.3     4.7    -      -       -      +
     44B  SER      3.0     0.4    -      -       -      -
     45B  VAL*     1.3    71.5    -      -       -      +
     47B  SER*     1.3    68.7    +      -       -      +
     48B  TRP      2.8     2.4    +      -       -      -
     49B  ASN*     2.8    18.8    +      -       -      +
     50B  TYR*     3.3     8.0    +      -       -      +
     58B  ASN      5.4     0.5    -      -       -      +
     61B  ASN*     4.0    13.9    -      -       +      +
     62B  MET*     3.7    28.1    -      -       -      +
     65B  ALA*     4.1     6.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 47 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43B  SER*     2.7    22.8    +      -       -      -
     44B  SER*     2.9     7.1    +      -       -      -
     46B  ALA*     1.3    72.7    -      -       -      +
     48B  TRP*     1.3    59.1    +      -       -      +
     50B  TYR*     3.5     3.3    +      -       -      +
     51B  ASN*     2.4    36.4    +      -       -      +
     62B  MET*     3.1    25.9    -      -       -      +
    349B  TRP*     3.4    18.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with TRP 48 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44B  SER      2.6    20.3    +      -       -      +
     45B  VAL*     3.8     4.3    -      -       +      +
     46B  ALA      2.8     1.6    +      -       -      -
     47B  SER*     1.3    67.1    -      -       -      +
     49B  ASN*     1.3    72.3    +      -       -      +
     50B  TYR      3.0     4.5    -      -       -      -
     51B  ASN*     2.8    23.4    +      -       -      +
     52B  THR*     2.8    38.6    +      -       +      +
    330B  ASN      3.3    21.6    +      -       -      -
    331B  SER      4.3     0.2    -      -       -      -
    332B  MET*     3.9    10.8    -      -       +      -
    349B  TRP*     3.4    56.4    -      +       +      -
    351B  LEU*     4.2     7.6    -      -       +      -
    357B  ARG*     3.0    43.4    -      -       +      +
    358B  ILE      3.8    18.4    -      -       -      -
    359B  LEU*     3.7    23.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 49 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45B  VAL*     3.2    26.7    +      -       -      +
     46B  ALA*     2.8    10.6    +      -       -      +
     48B  TRP*     1.3    90.6    +      -       -      +
     50B  TYR*     1.3    55.8    +      -       -      +
     52B  THR*     3.5     7.4    +      -       -      -
     53B  ASN*     3.0    29.6    +      -       +      +
     58B  ASN*     3.1    20.1    +      -       +      +
    357B  ARG*     5.1     0.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 50 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46B  ALA      3.3     4.0    +      -       -      -
     47B  SER      3.5     7.6    -      -       -      +
     48B  TRP      3.0     0.6    -      -       -      -
     49B  ASN*     1.3    74.8    -      -       -      +
     51B  ASN*     1.3    73.5    +      -       -      +
     52B  THR      2.9    10.7    +      -       -      -
     53B  ASN      3.0    22.6    +      -       -      -
     54B  ILE*     3.4    40.9    +      -       +      +
     58B  ASN*     4.2     6.4    -      -       -      +
     59B  VAL*     3.6    47.3    -      -       +      +
     62B  MET*     4.0    31.2    -      -       +      -
    343B  VAL*     4.5    18.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 51 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47B  SER*     2.4    35.4    +      -       -      +
     48B  TRP      2.8    11.7    +      -       -      +
     50B  TYR*     1.3    83.8    -      -       -      +
     52B  THR*     1.3    57.6    +      -       -      +
     53B  ASN      3.7     0.2    -      -       -      -
     62B  MET*     4.6     2.4    -      -       -      +
    342B  ALA*     3.3     6.4    -      -       -      +
    343B  VAL*     3.2    52.1    +      -       +      +
    349B  TRP*     4.1    13.9    -      -       +      -
    359B  LEU*     3.5    25.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 52 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48B  TRP*     2.8    50.5    +      -       +      +
     49B  ASN*     3.5    12.1    +      -       -      -
     51B  ASN*     1.3    82.8    -      -       -      +
     53B  ASN*     1.3    63.0    +      -       -      +
    332B  MET*     3.7    34.6    -      -       +      +
    340B  GLN*     3.7    18.5    +      -       -      +
    341B  LYS      4.0     6.4    -      -       -      +
    342B  ALA*     3.8     7.8    -      -       -      +
    359B  LEU*     4.0    10.3    -      -       +      -
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il